Markets were just heating up when it first issued shares at $5 in October 2004. And up until the credit crisis last year the heavily-geared financier's share price was on the up and up, reaching an all-time high of $34.63 in June 2007. Since then it's been hurt, like so many financial stocks reliant on debt. We all know that story. Last week, after announcing an interim profit guidance downgrade of up to 40 per cent, it traded at all-time lows of about $4.60. The drop of more than 20 per cent makes it the week's worst stock, anchoring chartist Richard Pritchard to the bottom and keeping accountant Heidi Schmitzer in sixth. Joining BNB in the bin for the week were toymaker Funtastic (FUN), the previous week's winning stock Buderim Ginger (BUG) and small biotech Giaconda (GIA), down 23 per cent, 19 per cent and 15 per cent respectively.

Losses on Funtastic and Buderim cost Claire Hooper her top spot, now held by the Dartboard.

Olympics broadcaster Seven Network (SEV) gave back some of its gains it accrued over the previous two weeks - dropping about 4 per cent and back to square one for this race - not helping David Potts. But judging by the feedback from some aggrieved viewers, this isn't the only race in which Seven has faltered. Try Beijing.